It's Week 4, so that means another Texans player will face off against his brother's team.

Safety Justin Reid will see his older brother Eric's Carolina Panthers come to NRG Stadium. It's the first time the two safeties will play on the same field against each other. The younger Reid has spoken multiple times about the impact his older brother's had on him. Professionally, Justin said he picked up a lot from his days studying NFL film with Eric, when the former was at Stanford and the latter with the 49ers.

"My older brother has always been a role model to me," Reid said during training camp. "He really made me a lot better just because of the things that he learned when he was a kid – his mistakes, his experiences – I was able to learn from those without even having to go through them myself. So, it kind of put me ahead of the game, it really helped me with football, with him teaching me safety skills before I had to get in the games."

The Reid reunion will happen one week after defensive end J.J. Watt played versus one of his little brothers in Derek Watt. The elder Watt and the Texans picked up a 27-20 win over the Chargers, and an everlasting memory in the process.

"That's a moment that I'll never forget," Watt said. "We've literally dreamt about that growing up, and we just did it. There's nothing else like that. A win, loss, anything – that's a memory we'll have for the rest of our lives."

In the preseason, safety A.J. Moore was injured, but his twin brother C.J. and the Detroit Lions practiced and played a game against each other in Houston.

A week after that, center Nick Martin saw his brother Zack and the Dallas Cowboys at AT&T Stadium.

Had Jacob Martin's brother Josh not been placed on the injured reserve at the end of August, the duo might've been on the field together in Week 1 at the Mercedes-Benz Superdome when the Texans played New Orleans.

Tight end Darren Fells, who caught his first touchdown with the team in Sunday's win at Los Angeles, has a brother named Daniel. From 2006 through 2015, Daniel Fells caught 111 passes for 1,307 yards and 12 touchdowns.

On the coaching side, offensive coordinator Tim Kelly's brother Dennis is an offensive lineman for the Titans. Linebackers coach John Pagano's brother Chuck is the defensive coordinator for the Bears.

The family connection doesn't stop there, though. Defensive backs assistant D'Anton Lynn coached Sunday against his father Anthony, who's the head coach of the Chargers.

Plus, Carl Smith coaches the Texans quarterbacks, while his son Tracy is an assistant special teams coach.